i struggle with this. >> that was president obama in 2010. his evolution has progressed rapidly in less than two years. >> at a certain point i've just concluded that for me personally it is important for me to go ahead and affirm that i think same-sex couples should be able it get married, and i continue to believe that this is an issue that is going to be worked out at the local level because historically this has not been a federal issue. >> soon the supreme court may go one step further and decide if the constitution permits same-sex marriage in every state across the country. on friday the nation's highest court announced it would take up two cases challenging laws that define marriage as between one man and one woman. the first seeks to strike down the federal government's defense of marriage act, known as doma. the second involves a challenge to california's proposition 8, a voter-approved ballot initiative that outlawed same-sex marriage. a federal appeals court struck down the law earlier this year. the court's decision to weigh in o